Steam-injector.



Patented May I4, I90I.

ld May 4, 1900) 5 Shets-Sheet I.

F. STICKER.

STEAM INJECTUR.

(-Applicstion No. s74,|84.

(Model.)

l N uw l NN w A l No. 674,I84. Patented May I4, I90I.

F. STICKER.

STEAM INJECTDR.

(Application led May 4,`1900.)

(Model.)

No. 674,184. Patented May I4, |90I'.

F STICKER STEAM INJECTUR.

[Appl r nmdmy4 1900) 5 Sheets-Sheet u LMudel.)

(Unvenro Patented may I4, |901.

51H wn Toz F STICKER STEAM INJECTOR.

(Application Bled May 4, `1900.,`

y No. 674,|84. Patented may I4, |901.

V F. STICKER. STEAM INJEETOR.

l (Application Bled May 4, 1900.)

(Model.) 5 Sheets-Shes* 5.

UNITED STATES PATENT OEEICE.

FRANCIS STICKER, OF YORK, N. Y., ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO CHARLES A. DRUCKLIEB, OF lSAME PLACE.

STEAM-INJEQTOR.

SPECIFICATION forming'part of Letters Patent No. 674,184, dated May 14, 1901.

Application filed May 4, 1900. Serial No. 15,520. (Model.)

To all whom t may concern,.-

Beit known that I, FRANCIS STICKER, of-

New York, in the county of New York and State of New York, have invented certain new 5 and usefullmprovements in Steam-Injectors; and I do herebydeclare the following to be a full, clear, and exact description of the invention, such as will `enable others skilled in the art to which it appertains to make and Io use the same. Y

This invention relates to lsteam-injectors; and the contemplated improvements are applicable in the main to injectors operated by live steam alone or exhaust-steam with or I5 without the addition of live steam.

One object of the invention is, primarily, to provide means which will enable a machine to perform a largevariety of work under different conditions. It is well known that zo steam under different conditions shows different reactions upon coming in contact wit-h water of different conditions as to quality and quantity, and hence the condition of one element must regulate that of the other in order 2 5 to obtain satisfactory results. In other words, quantity as well as quality of steam must harmonize with quantity-.as well as quality of water. Steam of low pressure requires a different quantity as Well as quality of Water than steam of high pressure in order to perform a special work. The more perfect the contact of steam and water in right proportions to each other the more perfect will be the work performed. By my present improve- 3:, ments I am enabled to so equip various styles or types of injectors that good results may be obtained under every different state or condition of steam and different quantityand quality of Water, or vice versa, means being provided for regulating the steam as well as the water to suit existing conditions. To these ends I employa cock formed with a se'- ries of separate chambers, and into the partitions are screwed jets or tubes, one or more 45 of which are stationary and one or more Inovable or adjustable longitudinally, whereby the capacity of the machine may be regulated by directly or indirectly controlling the water. A further object of the present invention is to provide an improved combining or delivery tube or nozzle. 'It is well known that chine.

in the manufacture of steam-injectors great diiculties arisein making the tubes or nozzles, it being almost impossible towork out the interior curves necessary to the attainy5 5 ment of properresults. In fact, straight lines have heretofore taken the place of curved lines, and to imitate the curves a number'ot short straight lines is generally employed'.l This necessarily prevents the perfect smooth 6o lines which are so essential for kabsolute correct working, and a number of sharp edges and interruptions is the result. The proper curves which should be observed in the bore of a tube or nozzle may be obtained by pro- 65 viding an injector-body with a cylindricalA bore and placing therein a bulb or torpedolike body, the outer contour of which reprel sents the absolutely-proper shape required for the correct working of the machine. have also found that by making this bulblike bodyhollow additional water-supply may be had when the steam-conditions require, as when the established jet has not the proper density. When this occurs, a Vacuum'will 75 be formed in this body and the necessary extra quantity ofwater will be supplied to the jet.

The invention will be hereinafter fully set forth, and particularly pointed out inthe 8o finlet, those of Fig. 4 the main water-inlet,

those of Fig. 5 the steam-inlet for the lifting device, and those of Fig. 6 the steam-inlet for the forcing device. Fig. 7 is a vertical sec- 95 tional view, on an enlarged scale,- showing some of the features of my present improvep ments as applied to'an exhaust-injector. Fig.

-8 is a similar view of a second modified form,

showing a like application of the means for roo controlling the Working capacity of the ma- Fig. 9 showsjshese improvements applied to still another form of injector. Fig 10 shows some of the improvements applied to a single-tube machine.

Referring to the drawings, Fig. 1, A designates the casing; a, the steam-inlet; d', the

water-inlet; a2, overflow branch, and a3 boileroutlet. The casing A is shown in this figure as formed with a cylindrical portion 1 of approximately uniform diameter throughout its length and which is surrounded in part by an outer shell 2, forming an overiiow-chamber 3, the discharge of which into branch a2 eects the unseating of check-valve 4. Communication into chamber 3 is had through overiow-openings 5.

Bis a tapered cock or valve fitted in a correspondingly-tapered seat in the receiving end of the casing. This cock is provided with aspindle which projects through an opening in the end of the casing, the cock being held fu'mlyin its seat by suitable means. Within the cock is formed a steam port or chamber 6 for admitting steam to the water-tank for heating up the water when desired. Adjacent to this is a second chamber 7, which is termed an auxiliary water-chamber, and next to this is the main water-chamber 8. A tube 9 is screwed at one end into the partition lO, between chambers 7 and 8. This tube I denominate an auxiliary water-inlet tube. The main waterlifting tube 11 surrounds a portion of tube 9 and takes its water-supply from the main chamber 8. A third tube 12, which is denominated the forcing-steam tube, surrounds a portion of the water-lifting tube 11 and the auxiliary tube 9. The lifting-steam is admitted through port 13 to the space between tubes 11 and 12, while the forcing-steam enters through port 14 and passes on the outside of tube 12. In the turning of cock B the lifting-steam is first admitted and the further turning of the cock will admit the forcing-steam through port 14. The exterior of the auxiliary tube 9 is curved to give it the proper lines which should be observed in the bore of an injector-tube, and this outline being of bell-like formation the space between tube 9 and the exit end of water-lifting tube l1 may be increased or diminished by moving longitudinally the former. In this way the combining-space of the lifter, and hence the capacity .of the machine, may be regulated.

C is a bulb-like body located within the cylindrical portion 1 of the casing and forming, in conjunction with the latter, the combining and delivery tube of the forcer. This body is curved on its exterior, so as to obtain between it and the surrounding portion of the casing the truly scientifically correct shape of a combining and delivery tube. At its forward endthis body receives pins 15, projecting from tube 9, and it also has a central bore to receive the stem of a checkvalve 16, which is normally seated over the end of the bore of tube 9. By thus connect ing the tube 9 to body C,which latter remains stationary, the turning of cock B will effect the longitudinal movement of tube 9, which lmovement is limited by a stop 17. This movement of the tube increases or diminishes the space between itself and outlet end of tube l1. The body C is formed with a chamber 18 throughout its length, which chamber communicates through openings 19 with the space within the cylindrical portion 1 of the casing. In the boiler-ontlet end of the casing is an ordinary check-valve 20, which is normally held to its seat by the boiler-pressure.

In practice the cock B is first turned to admit steam to port 13, which steam passing out to the overiiowbraneh will create a vacuum within the casing and effect the lifting of the water into the main waterchamber 8, where it will be taken up by tube 1l under the action of the lifting steam, and the steam and water are combined at the end of this tube and Water appears at the overflow. The cock is further turned to admit steam through port 14, which steam will pass around the forcer-tube 12 and take up the steam and water of the lifter, and the steam being fully condensed within the combining space surrounding the body C the jet will be established and travel over said body and out through the boileroutlet, unseating valve 20. The overflow finds its escape through openings 5. When the established jet has not the proper density, a vacuum will be formed inthe chamber of the body'C, the creation of which will effect the unseating of valve 16 and allow water to enter said chamber through the tube 9. This water being taken up by the column of steam and water Within the combining space, the proper conditions are given or restored in the established jet of steam and water, whereupon the valve 16 may be reseated. When the machine is in active operation, the chamber of the body C forms a special water-reservoir.

From what has been said it will be observed that in the turning of the controllingcock B the capacity of the machine is regulated. When this cock is so turned as to cause tube 9 to move away from body C, the outlet from lifting-tube l1 is decreased, and hence there is a less supply of water to the steam, while when the cock is turned in a reversed direction the supply of lifted water is increased. The cock also controls the steampassages and through its different posit-ions any desired regulation may be effected-that is, the injector may work under one-half steam and full water or one-half water and full steam or full steam and full water or any desired range of supply. Also 4it will be noted that where the established jet is not fully charged--that is, has not the proper density-a vacuum will be created within the body C and an additional supply of water will be drawn into such body, and thus in creasethe percentage of delivered water to the admitted steam. This will occur when- IOO IIO

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ever a higher vacuum exists in the chamber of the body C than is in the main Water-chamber. It will also be noted that the truly proper contour of a combining-tube is obtained by the curvature of the exterior of the auxiliary tube 9 and body C. In this way the true and proper mixing of the steam' i pacity of the machine.

and water is obtained.

In Fig. 7 I have indicated the application of a single cock and a plurality of tubes or nozzles, some of which are stationary, to what is commonly called an exhaustinjector that is, one Working by exhaust-steam. In this figure the cock D is formed with two chambers d and d', the former for forcing live steam and the latter for lifting live steam. A tapered tube or nozzle'd2 is screwed in the partition between these two chambers. This is surrounded by a second tube or nozzle d3,

exteriorly threaded to work in a threadedv opening in a partition d4 and having lugs el?, which are engaged by the end of cock D. Hence the turning of the cock-will effect the longitudinal adjustment of tube or nozzle cl3 and in consequence the increase or decrease of the outlet-space of said latter tube, according as it is moved forward or backward in relation to the tube or nozzle d2. The tube d3 extends through a tube d6, which receives the exhaust-steam from chamber di'. All of the tubes extend into the combining-tube de, the forcer-steam tube d2 being extended beyond the others. The water is admitted through chamber di.

In practice the exhaust-steam may be sufficient up to a certain pressure, but beyond this live steam is necessary. The supply of the lifting live steam is regulated, as before stated, by the longitudinal adjustment of tube d3. The admission of forcing-steam to tube d2 may be had by the turning of cock D.

-This is only necessary when the injector is Working against a pressure in excess of that against which the exhaust-steam is sufcient.

In Fig. 8 I have indicated another form of exhaust-injector to be worked with or without an auxiliary live-steam jet for forcing purposes only. In this form the cock E is formed with two chambers c e', the former for exhaust-steam and the latter for live steam, which enters through a port e2. The forcingsteam tube or nozzle e3 leads from chamber e' and through the exhaust-steam tube e4 and the lifting-tube e5. Tubes c3 and e4 are stationary in cock E; but the water-tube e5 is capable of longitudinal adjustment by the turning of said cock after the manner and by the means hereinbefore described.

In Fig. 9 I have shown the application of the tapered cock and series of tubes or nozzles to a different form of double-tube injector. In this` arrangement the lifting-steam is admitted to cock F through chamberfand the forcingsteam through chamberf. The two jets or nozzles f2 and f3, leading, respectively, from such chambers, are stationary within the cock, while the water tube or nozzlef4 is adjustable longitudinally in the manner and by the means before mentioned.

In Fig. l0 I have indicated a single-tube injector of the .type shown and described in Letters Patent No. 600,453, issued to me March 8, 1898, equipped with a tapered cock` G, the rotation of which will regulate the ca- The steam-inlet tube g is stationary within the cock, while the water-liftingtu be g is adjustable longitudinally, being formed with an exterior thread engaging a threaded opening in the cock and lateral lugs g2, which fit in openings in a partition g3 within the casing. 'In this as in the other forms the turning of cock G will increase or diminish the space between tubes g and g', and in this way the capacity of the machine will be regulated, the cock G also controlling the admission of steam which enters through chamber g4.

I claim as my inventionl.' In a steam-injector a cock controlling the steam and Water, a plurality of tubes mounted in said cock, and means for adjusting one of said tubes longitudinally, as set forth. A

2. In a steam-injector, a cock controlling the steam and water, a plurality of tubes mounted in said cock, one tube being adapted to move longitudinally, and means for eifecting such movement by the turning of said cock, substantially as set forth.

3. In a steam-injector, a cock for controlling the steam and water, a tube curved or tapered on its exterior, and a second tube encircling the former, and means for adjusting one tube longitudinally by the turning of said cock, substantially as set forth.

4. In a steam-injector, a cock having separate chambers, tubes mounted in said cock leading each from one of said chambers, and means for adjusting one of said tubes longitudinally, substantially as set forth.

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5. In a steam-injector, a cock having separate chambers, tubes mounted in said cock leading each from one of said chambers, one tube being externally threaded and having lateral flanges, whereby it will be adjusted longitudinally by the turning of said cock, substantially as set forth.

6. In a steam-injector, a cock having separate ports for admitting successively lifting and forcing steam, tubes for such lifting and forcing steam mounted in said cock, and a water-tube, one of said tubes being adjust-` able longitudinally, the contour of one or v more tubes being such that the capacity of the machine may be controlled by the adjustment of the longitudinally-adjustable tube, substantially as set forth.

7. A steam-injector having a body curved on its exterior, and a cylindrical portion surrounding said body, the space between the latter and said surrounding portion forming a steam and water mixing chamber, substantially as set forth.

8. A steam-injector having a cock formed with a Water-chamber and a lifting-steam port, a lifting-water tube leading from said water-chamber and around which the steam is designed to travel, a body within said tube having a curved portion, and means for adjusting said body longitudinally for increasing or decreasing the space between it and the outlet end of said water-lifting tube, substantially as set forth.

E). A steam-injector having a chamber communicating with the space for the passage of the established jet, and means for admitting water to said chamber and from it to the jet when the latter is not of proper density.

10. A steam-injector having its casing provided with a cylindrical portion, a body within said casing curved on its exterior throughout its length, forming, between itself and said cylindrical portion, a steam and water combining space, substantially as set forth.

11. A steam-injector having its casing provided with a cylindrical portion, a bulb-like body located in said casing curved thro u ghout its length on its exterior, forming, between itself and said cylindrical portion, steam and water combining and delivery spaces, substantially as set forth.

12. A steam-injector having an auxiliary water-inlet,a chamber in communication with said inlet, and means for admitting water thereto when the established jet is not of propel' density, as set forth.

13. A steam-injector having an auxiliary water-inlet,aJ chamber in communication with said inlet, said chamber being in communication with the space for the passage of the established jet, and a valve normally closing said auxiliary water-inlet, said valve being automatically unseated when the established jet is not of the proper density.

14C. A steam-injector having its casing provided with a cylindrical portion, a body in said casing curved on its exterior to form, between itself and said cylindrical portion, a space for the passage of the established jet, said body having an interior chamber communicating with said passage, an auxiliary water-inlet opening into said chamber, and means for allowing Water to pass from said auxiliary water-inlet into said chamber when the established jet is not of the proper density, substantially as set forth.

15. The combination with the casing having a cylindrical portion, of a body curved on its exterior and forming, between itself and said cylindrical portion, the space for the passage of the established jet, a chamber in said body communicating with said space, a cock having an auxiliary water-inlet, a tube in said cock leading from said auxiliary water-inlet to said chamber, and a valve normally seated over one end of said tube, substantially as set forth.

16. The combination with the casing having a cylindrical portion, of the body located within the latter curved on its exterior, forming, between itself and said cylindrical por tion, a space for the passage of the established jet, said body having an inner chamber comm unicating with said space, the cock having lifting and forcing steam inlets, and main and auxiliary water-inlets, lifting and forcing tubes also mounted in said cock, an auxiliary tube surrounded by said former tubes and communicating with said auxiliary water-inlet, and a check-valve over the inner end of said latter tu be, substantially as set forth.

17. The combination with the casing having a cylindrical portion, of the body located in the latter curved on its exterior, forming, between itself and said cylindrical portion, the space for the passage of the established jet, a chamber being formed in said body communicating with said space, a cock having lifting and forcing steam inlets and main and auxiliary waterinlets, lifting and forcing steam tubes also mounted in said cock, an auxiliary water-inlet tube curved on its exterior and surrounded by said lifting and forcing steam tubes, said auxiliary water-inlet tube engaging said cock at one end and said body at its other end, means for eecting the vlongitudinal adjustment of said auxiliary water-inlet tube by the turning of said cock, and a valve normally seated over one end of said auxiliary water-inlet tube, substantially as set forth.

18. A steam-injector having a cock extending through a steam-chamber, said cock having a port therein designed to admit steam to the water-inlet branch, substantially as set forth.

In testimony whereof l have signed this specification in the presence of two subscribing witnesses.

FRANCIS STICKER.

l/Vitnesses:

ANNA T. MALLON, L. HERZIG.

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